1-alkyl-2-acetylglycerophosphocholine esterase activity https://github.com/geneontology/go-ontology/issues/30193 Reactome:R-HSA-8869206 PAF 2-acylhydrolase activity LDL-associated phospholipase A2 PAF acetylhydrolase activity RHEA:41372 RHEA:41376 Catalysis of the reaction: a 1-O-alkyl-2-acetyl-sn-glycero-3-phosphocholine + H2O = 1-O-alkyl-sn-glycero-3-phosphocholine + acetate + H+. 1-alkyl-2-acetyl-sn-glycero-3-phosphocholine acetylhydrolase activity 1-alkyl-2-acetyl-sn-glycero-3-phosphocholine acetohydrolase activity alkylacetyl-GPC:acetylhydrolase activity molecular_function platelet-activating factor acetylhydrolase activity LDL-associated phospholipase A(2) activity LDL-PLA(2) activity GO:0003847 2-acetyl-1-alkylglycerophosphocholine esterase activity RHEA:41183 MetaCyc:3.1.1.47-RXN RHEA:41368 EC:3.1.1.47 RHEA:17777 RHEA:40479 LDL-PLA2 carboxylic ester hydrolase activity