The amount of a 3-galactosyl-N-acetylglucosaminide 4-alpha-L-fucosyltransferase FUT3 (human) when measured in cerebrospinal fluid. The trait is level of 3-galactosyl-N-acetylglucosaminide 4-alpha-L-fucosyltransferase FUT3 (human) in cerebrospinal fluid (Ontology of Biological Attributes id OBA_2057375). Also known as: cerebrospinal fluid 3-galactosyl-N-acetylglucosaminide 4-alpha-L-fucosyltransferase FUT3 (human) amount.