The amount of a glycoprotein endo-alpha-1,2-mannosidase (human) when measured in cerebrospinal fluid. The trait is level of glycoprotein endo-alpha-1,2-mannosidase (human) in cerebrospinal fluid (OBA_2059181). Also known as: cerebrospinal fluid glycoprotein endo-alpha-1,2-mannosidase (human) amount.