Enables DNA polymerase binding activity; PDZ domain binding activity; and nuclear receptor binding activity. Involved in several processes, including male gonad development; positive regulation of female receptivity; and positive regulation of glucocorticoid receptor signaling pathway. Located in several cellular components, including dendritic spine; postsynaptic density; and rough endoplasmic reticulum. Human ortholog(s) of this gene implicated in acute myeloid leukemia. Orthologous to human NCOA2 (nuclear receptor coactivator 2). [provided by Alliance of Genome Resources, Apr 2022]