The amount of a tRNA wybutosine-synthesizing protein 3 homolog (human) when measured in cerebrospinal fluid. The trait is level of tRNA wybutosine-synthesizing protein 3 homolog (human) in cerebrospinal fluid (Ontology of Biological Attributes term OBA_2059297). Also known as: cerebrospinal fluid tRNA wybutosine-synthesizing protein 3 homolog (human) amount.