Predicted to enable DNA-binding transcription repressor activity, RNA polymerase II-specific; RNA polymerase II cis-regulatory region sequence-specific DNA binding activity; and protein dimerization activity. Acts upstream of or within nucleocytoplasmic transport. Located in cytoplasm and nucleus. Is expressed in several structures, including alimentary system; central nervous system; eye; genitourinary system; and immune system. Orthologous to human MLX (MAX dimerization protein MLX). [provided by Alliance of Genome Resources, Apr 2022]