The striker, who initially joined from Walsall in October on a deal until the start of January, will remain with the club for the rest of the 2022/23 National League campaign.
Abraham has started four games since his arrival, with a further three substitute appearances, making an impact with his pace and direct running in particular.
He came off the bench to claim the winning goal in Latics' league victory against Torquay United and is part of a reshaped forward line in recent months, which now includes more recent captures Alex Reid and Joe Nuttall.
