Enables DNA-binding transcription activator activity, RNA polymerase II-specific; RNA polymerase II cis-regulatory region sequence-specific DNA binding activity; and chromatin binding activity. Involved in negative regulation of endothelial cell migration and positive regulation of transcription by RNA polymerase II. Acts upstream of or within several processes, including T cell differentiation; male gonad development; and spermatogenesis. Located in nucleus. Is expressed in several structures, including alimentary system; genitourinary system; limb bud; nervous system; and sensory organ. Orthologous to human PATZ1 (POZ/BTB and AT hook containing zinc finger 1). [provided by Alliance of Genome Resources, Apr 2022]