Necessary for efficient RNA polymerase II transcription elongation past template-encoded arresting sites (Probable). Involved in the control of seed dormancy and germination (PubMed:19150360, PubMed:21799800). Expressed in roots, leaves and flowers. Reduced seed dormancy and increased germination rate of freshly harvested seeds (PubMed:19150360, PubMed:21799800). Early flowering (PubMed:19150360).