GLUD1 codes for glutamate dehydrogenase 1 which is a protein with 61 kDa (61,398 Da - isoform 1). It has oxireductase activity: glutamate dehydrogenase (NAD+) activity, glutamate dehydrogenase (NADP+) activity and glutamate dehydrogenase [NAD(P)+] activity. It is involved in some biological processes such as amino acid metabolic processes, signaling and anatomical structure development.