Enables phosphatase inhibitor activity. Predicted to be involved in histone exchange and regulation of apoptotic process. Predicted to act upstream of or within chromatin organization. Located in cytoplasmic vesicle and nucleus. Is expressed in brain; liver; retina layer; and skeletal muscle. Orthologous to human ANP32E (acidic nuclear phosphoprotein 32 family member E). [provided by Alliance of Genome Resources, Apr 2022]