Enables several functions, including nuclear receptor binding activity; nuclear receptor coactivator activity; and peroxisome proliferator activated receptor binding activity. Involved in several processes, including male gonad development; positive regulation of intracellular estrogen receptor signaling pathway; and regulation of transcription, DNA-templated. Located in Golgi apparatus; nucleus; and perinuclear region of cytoplasm. Used to study breast cancer. Human ortholog(s) of this gene implicated in obesity. Orthologous to human NCOA3 (nuclear receptor coactivator 3). [provided by Alliance of Genome Resources, Apr 2022]