Predicted to enable pyridoxal phosphate binding activity. Acts upstream of or within vitamin B6 metabolic process. Predicted to be active in cytoplasm. Used to study early-onset vitamin B6-dependent epilepsy 1. Human ortholog(s) of this gene implicated in early-onset vitamin B6-dependent epilepsy 1. Orthologous to human PLPBP (pyridoxal phosphate binding protein).