Magnesium-independent phospholipid phosphatase with broad substrate specificity. Preferentially catalyzes the conversion of diacylglycerol pyrophosphate into phosphatidate but can also act on phosphatidate and lysophosphatidate. Phospholipid phosphatases are involved in both the synthesis of lipids and the generation or degradation of lipid-signaling molecules. a 1,2-diacyl-sn-glycerol 3-diphosphate + H2O = a 1,2-diacyl-sn-glycero-3-phosphate + H(+) + phosphate a 1,2-diacyl-sn-glycero-3-phosphate + H2O = a 1,2-diacyl-sn-glycerol + phosphate 1,2-dioctanoyl-sn-glycero-3-diphosphate + H2O = 1,2-dioctanoyl-sn-glycero-3-phosphate + H(+) + phosphate 1,2-dioctanoyl-sn-glycero-3-phosphate + H2O = 1,2-dioctanoyl-sn-glycerol + phosphate 1-(9Z-octadecenoyl)-sn-glycero-3-phosphate + H2O = 1-(9Z-octadecenoyl)-sn-glycerol + phosphate Magnesium-independent phospholipid phosphatase. Inhibited by N-ethylmaleimide. Lipid metabolism; phospholipid metabolism. Belongs to the PA-phosphatase related phosphoesterase family. Truncated N-terminus.