Enables DNA-binding transcription activator activity, RNA polymerase II-specific and RNA polymerase II cis-regulatory region sequence-specific DNA binding activity. Involved in positive regulation of transcription by RNA polymerase II. Acts upstream of or within positive regulation of transcription, DNA-templated. Predicted to be located in nucleus. Is expressed in several structures, including central nervous system; embryo mesenchyme; future midbrain; genitourinary system; and retina. Orthologous to human EBF3 (EBF transcription factor 3). [provided by Alliance of Genome Resources, Apr 2022]