Enables DNA-binding transcription activator activity, RNA polymerase II-specific and RNA polymerase II transcription regulatory region sequence-specific DNA binding activity. Involved in positive regulation of transcription by RNA polymerase II. Acts upstream of or within regulation of transcription, DNA-templated. Predicted to be located in nucleus. Is expressed in several structures, including genitourinary system; nervous system; and retina. Orthologous to human EBF4 (EBF family member 4). [provided by Alliance of Genome Resources, Apr 2022]