The function of CFAP276 (cilia and flagella associated protein 276, Ensembl gene identifier ENSG00000179902) is as follows. Microtubule inner protein (MIP) part of the dynein-decorated doublet microtubules (DMTs) in cilia axoneme, which is required for motile cilia beating (PubMed:36191189). May play an important role for the maintenance of myelin-axon integrity (By similarity). May affect intracellular Ca(2+) homeostasis (PubMed:31199454). {ECO:0000250|UniProtKB:E1B9I5, ECO:0000250|UniProtKB:Q9DAD0, ECO:0000269|PubMed:31199454, ECO:0000269|PubMed:36191189}.