May play a role in the sperm tail fibrous sheath, a major sperm tail structure.
Belongs to the CEP135/TSGA10 family.
Appears to be processed in a 27 kDa and a 55 kDa peptide containing respectively the N-terminal and the C-terminal part of the precursor.
Cytoplasm. Nucleus. Nucleus membrane. The 27 kDa peptide associates with the fibrous sheath in mature spermatozoa and localizes to the principal piece of sperm tail while the 55 kDa peptide localizes to the midpiece.