Predicted to enable DNA-binding transcription repressor activity, RNA polymerase II-specific and RNA polymerase II transcription regulatory region sequence-specific DNA binding activity. Predicted to be involved in negative regulation of transcription by RNA polymerase II. Predicted to be active in nucleus. Human ortholog(s) of this gene implicated in oculoauricular syndrome. Orthologous to human HMX1 (H6 family homeobox 1). [provided by Alliance of Genome Resources, Apr 2022]