The amount of a polypeptide N-acetylgalactosaminyltransferase 10 (human) when measured in cerebrospinal fluid. The trait is level of polypeptide N-acetylgalactosaminyltransferase 10 (human) in cerebrospinal fluid (Ontology of Biological Attributes id OBA_2059551). Also known as: cerebrospinal fluid polypeptide N-acetylgalactosaminyltransferase 10 (human) amount.