May play a role in differentiating skeletal muscle. Expressed in skeletal and cardiac muscle. At 8.5 dpc, expressed predominantly in neural tube and somites. At 9.5 dpc, expression is higher in the peripheral region of the brain, in the dorsal region of the neural tube, in the segmental plate and in the somites. In developing brain, expression is restricted to regions with actively proliferating cells. At later stages, expressed in many tissues of neuroectodermal and mesodermal origin. At 17 dpc, expression is high in the skeletal muscle fibers, which are mitotically arrested and terminally differentiated. Belongs to the krueppel C2H2-type zinc-finger protein family. Truncated C-terminus. Truncated C-terminus.