The amount of a N-acyl-phosphatidylethanolamine-hydrolyzing phospholipase D (human) when measured in cerebrospinal fluid. The trait is Ontology of Biological Attributes id OBA_2059298 (level of N-acyl-phosphatidylethanolamine-hydrolyzing phospholipase D (human) in cerebrospinal fluid). Also known as: cerebrospinal fluid N-acyl-phosphatidylethanolamine-hydrolyzing phospholipase D (human) amount.