Beavis, who looked after several of rugby league's biggest names, died on the Gold Coast on Sunday night after battling health issues in recent years.
The veteran agent was a pioneer in the industry, and went on to be one of the most influential figures in rugby league during the 1990s and through the Super League war.
After first taking on David Gillespie's affairs in the late 1980s, Beavis' list of clients included Phil Gould, Steve Menzies, Jarryd Hayne, Trent Barrett, Fittler and Ryan.
"I went up with Brad Fittler," Ryan said on Triple M Breakfast.
"He has had some health battles and he has been fighting extremely hard.
"He is someone I met when I was 21 and he has been not only my manager … but my mentor and someone I look up to.
"He is someone that instilled the importance of family in me and to look after those around you and look after people you love.
"Unfortunately last night after we left him … he lost his battle. I am glad we made it up there but he means so much to so many people.
"I owe everything I have got to Wayne Beavis."
Beavis remained one of the game's most influential figures well into the 21st century, including through Hayne's move to the NFL.
He officially stepped away from managing in 2017, but remained a large figure in the game.
His death comes just a week after fellow player agent and former New Zealand rugby league figure Stan Martin passed away.
Martin managed several current NRL players, including Brandon Smith and Chanel Harris-Tavita.
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