May be a transcription factor that may be involved in hematopoiesis, oncogenesis, and immune responses (By similarity). Plays a role in postnatal myogenesis, may be involved in the regulation of satellite cells self-renewal (PubMed:27446912). Can homodimerize. Binds to DNA. Specifically expressed in early hippocampal neurons, cerebellar granule cells and gliogenic progenitors as well as in differentiated glia (PubMed:11744704). Expressed in adult and aged myogenic satellite cells (PubMed:27446912). Not expressed during development, is induced during establishment of satellite cells and acquisition of quiescence. Sumoylated with SUMO1.