Enables DNA-binding transcription factor activity and transcription cis-regulatory region binding activity. Acts upstream of or within regulation of transcription, DNA-templated. Located in nucleus. Is expressed in several structures, including central nervous system; early conceptus; genitourinary system; immune system; and musculature. Orthologous to human MAFK (MAF bZIP transcription factor K). [provided by Alliance of Genome Resources, Apr 2022]