As a component of IFT complex A (IFT-A), a complex required for retrograde ciliary transport and entry into cilia of G protein-coupled receptors (GPCRs), it is involved in ciliogenesis (Probable). In particular, may act redundantly with the intraflagellar transport protein ift-139 to regulate the transport of specific ciliary cargo proteins such as che-3 which are related to motility. Component of the IFT complex A (IFT-A) composed of at least che-11, daf-10, dyf-2, ift-139, ift-43 and ifta-1. Expressed in ciliated sensory neurons. No visible phenotype, with no defects in cilium morphology. Double knockout with intraflagellar transport protein ift-139 results in defective cilium morphology and function. Belongs to the IFT43 family.