The 24-year-old makes the switch to the Sky Bet League One side for the remainder of the 2019/20 campaign, with The Gills currently sat in 12th place in the table.
After joining Wolves in January 2015, Graham had a prominent spell with his new side, making 12 appearances, assisting ten goals and scoring on one occasion during the Championship campaign.
Need a VPN? Or seeking to switch? Then support Tribal Football by clicking here to sign up with our official partners NordVPN. Not only will you receive the best VPN experience, but also great discounts by signing up via Tribal Football. Thanks for your support!