Hydrolyzes phosphatidylserine as well as phosphatidylcholine. a 1,2-diacyl-sn-glycero-3-phosphocholine + H2O = a 1,2-diacyl-sn-glycerol + H(+) + phosphocholine Predicted to be exported by the Tat system. The position of the signal peptide cleavage has not been experimentally proven. Belongs to the bacterial phospholipase C family.