The amount of a lactosylceramide alpha-2,3-sialyltransferase (human) when measured in cerebrospinal fluid. The trait is OBA_2081681 (level of lactosylceramide alpha-2,3-sialyltransferase (human) in cerebrospinal fluid). Also known as: cerebrospinal fluid lactosylceramide alpha-2,3-sialyltransferase (human) amount.