Predicted to enable transcription cis-regulatory region binding activity. Acts upstream of or within several processes, including establishment of Sertoli cell barrier; peptidyl-lysine trimethylation; and regulation of gene expression. Predicted to be located in cytosol; mitochondrion; and nucleoplasm. Predicted to be active in nucleus. Is expressed in testis. Orthologous to human ARID4B (AT-rich interaction domain 4B). [provided by Alliance of Genome Resources, Apr 2022]