"This year he's been one of our best players and he's been captain for the Taniwha a couple of times."
Parkinson said the "charismatic" Pryor had turned down some attractive overseas offers to play in the ITM Cup.
The dreadlocked player told the Advocate earlier this month the timing of the Highlanders signing had been good, as he neared the completion of his Bachelor of Business at Auckland University of Technology (AUT).
He said he had been "sort of looking at maybe heading overseas in the next couple of years". "I am stoked, I've obviously been playing this game [at ITM Cup level] for four years and it's good to get a crack at another level."
Pryor, who had a Super Rugby season with the Blues in 2012, vowed then that "I'm coming back here - my heart is up here".
He is one of 11 new caps named in the Maori All Blacks squad to take on Japan next month.
The 27-strong Maori All Black squad departs on Monday, October 27, for its first ever visit to Japan.
Coach Colin Cooper said he was pleased with the squad's mix of youth and experience.
"The team has a proud legacy and an enviable record against national teams so I am sure all 27 players will be working hard to ensure this tour honours that legacy," he said.
Full Squad:
• Hookers: Joe Royal (Bay of Plenty), Ash Dixon (Hawke's Bay), Codie Taylor* (Canterbury)
• Props: Chris Eves (Manawatu), Mike Kainga* (Bay of Plenty), Nicholas Barrett (Auckland), Brendon Edmonds* (Hawke's Bay)
• Lock: Tom Franklin* (Otago), Joseph Wheeler (Tasman)
• Loose forwards: Shane Christie (vc) (Tasman), Blade Thomson (Taranaki), Liam Squire (Tasman), Elliot Dixon (Southland), Sean Polwart* (Auckland), Dan Pryor* (Northland)
• Halfbacks: Jamison Gibson-Park (Taranaki), Chris Smylie (Taranaki)
• First five-eighths: Ihaia West (Hawke's Bay), Marty McKenzie* (Taranaki)
• Midfield backs: Jason Emery* (Manawatu), Charlie Ngatai (c) (Taranaki), James Lowe* (Tasman)
• Outside backs: Matt Proctor (Wellington), Kurt Baker (Taranaki), Joe Webber* (Waikato), Nehe Milner-Skudder* (Manawatu), Robbie Robinson (North Harbour)
*not capped