Enables DNA-binding transcription factor activity and double-stranded DNA binding activity. Involved in regulation of transcription, DNA-templated. Acts upstream of or within embryonic hindlimb morphogenesis. Located in nucleus. Is expressed in several structures, including alimentary system; genitourinary system; limb bud; nervous system; and sensory organ. Orthologous to human AFF3 (AF4/FMR2 family member 3). [provided by Alliance of Genome Resources, Apr 2022]