The amount of a Arf-GAP domain and FG repeat-containing protein 1 (human) when measured in cerebrospinal fluid. The trait is level of Arf-GAP domain and FG repeat-containing protein 1 (human) in cerebrospinal fluid (OBA_2058080, an Ontology of Biological Attributes entry). Also known as: cerebrospinal fluid Arf-GAP domain and FG repeat-containing protein 1 (human) amount.