Enables chromatin binding activity. Predicted to be involved in positive regulation of macroautophagy; regulation of RNA metabolic process; and transcription elongation from RNA polymerase II promoter. Predicted to be located in nucleoplasm. Predicted to be part of DSIF complex. Is expressed in several structures, including genitourinary system; limb mesenchyme; and nervous system. Orthologous to human SUPT5H (SPT5 homolog, DSIF elongation factor subunit). [provided by Alliance of Genome Resources, Apr 2022]