Belongs to the UPF0508 family. This is a truncated version of an UPF0508 family protein. Strain S288c has a tandem insertion of a Ty1 transposon in position 742, which disrupts the gene coding for this protein and produces two ORFs YJR030C and YJR025C-A. A contiguous sequence of this protein can be found in strain YJM789 (AC A6ZPZ1). Contains PCR fragment of strain VP102-10A.