To mimic the muscles used in a deadlift by doing more isolation moves, you usually have to do more than one: a ball roll-in plus and prone leg raise on the ball (lie face-down on the ball and lift your legs in one unit). The first move targets the hamstrings in their 'bending the leg' function. The second targets the hamstrings/glutes/lower back in the 'straightening-the-body from a bent position" function.