Either convert him to midfield (if he has good positioning stats) or full back (if he can play the ball a bit), or he can't do either of those, get rid.
You might be able to use him as some sort of sweeper in a 3-at-the-back system, but unless he's world-class in everything else he does it's not worth the effort.
His 18 heading is useless - it measures how good he can twist his neck and get power on the ball once he's got his head to it, but if he's 5'10" and can't get off the ground, that's not going to happen.