Enables 1-alkyl-2-acetylglycerophosphocholine esterase activity; identical protein binding activity; and platelet-activating factor acetyltransferase activity. Involved in brain development. Located in cytosol. Part of 1-alkyl-2-acetylglycerophosphocholine esterase complex. Human ortholog(s) of this gene implicated in lymphoma. Orthologous to human PAFAH1B2 (platelet activating factor acetylhydrolase 1b catalytic subunit 2). [provided by Alliance of Genome Resources, Apr 2022]