Predicted to enable histone binding activity and nucleosome binding activity. Predicted to be involved in several processes, including negative regulation of histone H3-K27 methylation; regulation of nucleobase-containing compound metabolic process; and transcription by RNA polymerase II. Predicted to act upstream of or within blastocyst formation. Predicted to be part of transcription elongation factor complex. Predicted to be active in transcriptionally active chromatin. Orthologous to human SUPT6H (SPT6 homolog, histone chaperone and transcription elongation factor). [provided by Alliance of Genome Resources, Apr 2022]