Exhibits weak phospholipase activity, acting on various phospholipids, including phosphatidylcholine, phosphatidylinositol, phosphatidylethanolamine and lysophospholipids. However, in view of the small size of the putative binding pocket, it has been proposed that it may act rather as an amidase or a peptidase (By similarity). May form a homodimer, each monomer is composed of a chain A and a chain B. The maturation cleavages that produces chains A and B are required to open the putative substrate binding pocket. Both chains A and B remain associated in the mature protein (By similarity). Belongs to the phospholipase B-like family.