Being small doesn't eliminate you from playing D1 Lax. May be harder but there are plenty of smaller success stories:

Jimmy Bitter 5'9, 165 52 points as a sophomore NC
Joey Sankey 5'5 150 56 points as a sophomore NC
Josh Dionne 5'7 185 50 points JR - Duke
Case Matheis 5'8 160 52 points Fr - Duke