The amount of a beta-1,3-galactosyltransferase 1 (human) when measured in cerebrospinal fluid. The trait is Ontology of Biological Attributes entry OBA_2081862 (level of beta-1,3-galactosyltransferase 1 (human) in cerebrospinal fluid). Also known as: cerebrospinal fluid beta-1,3-galactosyltransferase 1 (human) amount.