Predicted to enable lamin binding activity and transcription corepressor activity. Predicted to be involved in negative regulation of cardiac muscle hypertrophy in response to stress; negative regulation of transcription by RNA polymerase II; and positive regulation of transcription by RNA polymerase II. Predicted to be located in nuclear lumen. Predicted to be active in PML body; nuclear envelope; and sarcolemma. [Provided by Alliance of Genome Resources]