Predicted to enable several functions, including ATPase binding activity; SUMO binding activity; and protein N-terminus binding activity. Predicted to be involved in cellular response to estrogen stimulus and positive regulation of transcription by RNA polymerase II. Predicted to be located in nucleolus; nucleoplasm; and transcriptionally active chromatin. Predicted to be part of MLL1 complex. Is expressed in cerebral cortex; hypothalamus; and midbrain. Orthologous to human PELP1 (proline, glutamate and leucine rich protein 1). [provided by Alliance of Genome Resources, Apr 2022]