This archaebacterial protein has no known function. The protein contains seven conserved cysteines containing a CxxCxxC motif and may also be an integral membrane protein [1].

1: Comparative genomic analysis of evolutionarily conserved but functionally uncharacterized membrane proteins in archaea: Prediction of novel components of secretion, membrane remodeling and glycosylation systems. Makarova KS, Galperin MY, Koonin EV; Biochimie. 2015;118:302-312. PMID:25583072