Required, with sphingomyelinase, to effect target cell lysis (hemolysis). a 1,2-diacyl-sn-glycero-3-phosphocholine + H2O = a 1,2-diacyl-sn-glycerol + H(+) + phosphocholine Binds 3 Zn(2+) ions per subunit. Monomer. Belongs to the bacterial zinc-metallophospholipase C family.