Enables several functions, including DNA binding activity; DNA-binding transcription activator activity, RNA polymerase II-specific; and promoter-specific chromatin binding activity. Contributes to DNA binding activity. Involved in several processes, including cellular response to estradiol stimulus; histone acetylation; and positive regulation of snRNA transcription by RNA polymerase II. Acts upstream of or within several processes, including myotube differentiation; regulation of RNA metabolic process; and skeletal muscle fiber adaptation. Located in euchromatin; myofibril; and nucleus. Part of transcription regulator complex. Is expressed in several structures, including alimentary system; embryo mesenchyme; limb; limb bud; and musculature. Orthologous to human MYOD1 (myogenic differentiation 1). [provided by Alliance of Genome Resources, Apr 2022]