Enables several functions, including lysine-acetylated histone binding activity; nuclear receptor coactivator activity; and protein-arginine N-methyltransferase activity. Involved in several processes, including histone H3-R17 methylation; positive regulation of fat cell differentiation; and regulation of intracellular estrogen receptor signaling pathway. Acts upstream of or within several processes, including intracellular estrogen receptor signaling pathway; regulation of growth plate cartilage chondrocyte proliferation; and regulation of transcription, DNA-templated. Located in cytosol and nucleus. Part of RNA polymerase II transcription regulator complex. Is expressed in several structures, including branchial arch; central nervous system; gonad; limb bud; and sensory organ. Orthologous to human CARM1 (coactivator associated arginine methyltransferase 1). [provided by Alliance of Genome Resources, Apr 2022]