The amount of a calcineurin B homologous protein 3 (human) when measured in cerebrospinal fluid. The trait is level of calcineurin B homologous protein 3 (human) in cerebrospinal fluid (OBA_2080305, an Ontology of Biological Attributes entry). Also known as: cerebrospinal fluid calcineurin B homologous protein 3 (human) amount.