Required for cytoplasmic pre-assembly of axonemal dyneins, thereby playing a central role in motility in cilia and flagella. Involved in pre-assembly of dynein arm complexes in the cytoplasm before intraflagellar transport loads them for the ciliary compartment. Localizes in the apical cytoplasm around the gamma-tubulin-positive pericentriolar region, not in the cilia. Belongs to the PIH1 family. Kintoun subfamily.