Enables transcription coactivator activity. Predicted to be involved in positive regulation of cell migration; positive regulation of cell population proliferation; and regulation of transcription, DNA-templated. Predicted to act upstream of or within positive regulation of apoptotic process. Predicted to be located in nuclear envelope lumen. Predicted to be active in nucleus. Is expressed in early conceptus; inner cell mass; and oocyte. Orthologous to human CCAR1 (cell division cycle and apoptosis regulator 1). [provided by Alliance of Genome Resources, Apr 2022]