PLSCR4, Phospholipid scramblase 4, Ca(2+)-dependent phospholipid scramblase 4, Cell growth-inhibiting gene 43 protein, TRA1

PLSCR4 may mediate accelerated ATP-independent bidirectional transbilayer migration of phospholipids upon binding calcium ions that results in a loss of phospholipid asymmetry in the plasma membrane. May play a central role in the initiation of fibrin clot formation, in the activation of mast cells and in the recognition of apoptotic and injured cells by the reticuloendothelial system.