Predicted to enable transcription corepressor activity. Predicted to act upstream of or within negative regulation of transcription, DNA-templated and regulation of testosterone biosynthetic process. Predicted to be located in cytoplasm and nucleus. Predicted to be integral component of membrane. Orthologous to human CMTM2 (CKLF like MARVEL transmembrane domain containing 2). [provided by Alliance of Genome Resources, Apr 2022]