Predicted to enable DNA-binding transcription factor binding activity; identical protein binding activity; and transcription corepressor activity. Predicted to be involved in negative regulation of fat cell differentiation and negative regulation of transcription, DNA-templated. Predicted to act upstream of or within fat cell differentiation; regulation of DNA binding activity; and regulation of transcription, DNA-templated. Predicted to be located in nuclear matrix and nucleoplasm. Predicted to be active in nucleus. Orthologous to human RUNX1T1 (RUNX1 partner transcriptional co-repressor 1). [provided by Alliance of Genome Resources, Apr 2022]