Enables cis-regulatory region sequence-specific DNA binding activity. Involved in several processes, including positive regulation of transcription by RNA polymerase II; regulation of epithelial to mesenchymal transition; and transcription by RNA polymerase II. Acts upstream of or within negative regulation of intrinsic apoptotic signaling pathway in response to DNA damage by p53 class mediator; positive regulation of neural precursor cell proliferation; and positive regulation of neurogenesis. Located in nucleus. Is expressed in embryo endoderm and olfactory epithelium. Orthologous to human ELL3 (elongation factor for RNA polymerase II 3). [provided by Alliance of Genome Resources, Apr 2022]