Predicted to enable identical protein binding activity and molybdopterin synthase activity. Predicted to be involved in Mo-molybdopterin cofactor biosynthetic process. Predicted to be located in nuclear speck. Predicted to be part of molybdopterin synthase complex. Predicted to be active in cytosol. Human ortholog(s) of this gene implicated in molybdenum cofactor deficiency type B. Orthologous to human MOCS2 (molybdenum cofactor synthesis 2). [provided by Alliance of Genome Resources, Apr 2022]