Component of the nexin-dynein regulatory complex (N-DRC), a key regulator of ciliary/flagellar motility which maintains the alignment and integrity of the distal axoneme and regulates microtubule sliding in motile axonemes (PubMed:23427265, PubMed:25411337). Component of the nexin-dynein regulatory complex (N-DRC), composed of at least DRC1, DRC2, DRC3, DRC4, DRC5, DRC6, DRC7, DRC8, DRC9, DRC10 and DRC11 (PubMed:23427265, PubMed:25411337). Belongs to the DRC9 family.