Predicted to enable RNA polymerase II-specific DNA-binding transcription factor binding activity and histone binding activity. Predicted to contribute to nucleosome binding activity. Acts upstream of or within gastrulation; muscle cell differentiation; and osteoblast differentiation. Located in chromatin. Is expressed in several structures, including branchial arch; cardiovascular system; central nervous system; limb bud; and sensory organ. Orthologous to human HIRA (histone cell cycle regulator). [provided by Alliance of Genome Resources, Apr 2022]