The amount of a CMP-N-acetylneuraminate-beta-galactosamide-alpha-2,3-sialyltransferase 1 (human) when measured in cerebrospinal fluid. The trait is Ontology of Biological Attributes term OBA_2058593 (level of CMP-N-acetylneuraminate-beta-galactosamide-alpha-2,3-sialyltransferase 1 (human) in cerebrospinal fluid). Also known as: cerebrospinal fluid CMP-N-acetylneuraminate-beta-galactosamide-alpha-2,3-sialyltransferase 1 (human) amount.