Enables RNA polymerase II cis-regulatory region sequence-specific DNA binding activity; histone acetyltransferase binding activity; and transcription coregulator binding activity. Involved in cellular response to insulin stimulus and positive regulation of transcription by RNA polymerase II. Located in chromatin and nucleus. Part of protein-DNA complex. Orthologous to human SP1 (Sp1 transcription factor). [provided by Alliance of Genome Resources, Apr 2022]