Predicted to enable RNA polymerase binding activity and histone binding activity. Acts upstream of or within several processes, including inner ear development; roof of mouth development; and ventricular system development. Located in nucleus. Is expressed in several structures, including eye; heart; and metanephros. Orthologous to human ANP32B (acidic nuclear phosphoprotein 32 family member B). [provided by Alliance of Genome Resources, Apr 2022]