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. Component of the nexin-dynein regulatory complex (N-DRC). May be produced at very low levels due to a premature stop codon in the mRNA, leading to nonsense-mediated mRNA decay. Belongs to the AAA ATPase family. DRC11 subfamily. Chimeric cDNA. Unlikely isoform. Aberrant splice sites.