The amount of a galactosylgalactosylxylosylprotein 3-beta-glucuronosyltransferase 3 (human) when measured in cerebrospinal fluid. The trait is OBA_2056438 (level of galactosylgalactosylxylosylprotein 3-beta-glucuronosyltransferase 3 (human) in cerebrospinal fluid). Also known as: cerebrospinal fluid galactosylgalactosylxylosylprotein 3-beta-glucuronosyltransferase 3 (human) amount.