The amount of a peptidyl-prolyl cis-trans isomerase-like 1 (human) when measured in cerebrospinal fluid. The trait is level of peptidyl-prolyl cis-trans isomerase-like 1 (human) in cerebrospinal fluid (OBA_2081786). Also known as: cerebrospinal fluid peptidyl-prolyl cis-trans isomerase-like 1 (human) amount.