Full length members of this family, about 1100 amino acids long, include STY4851 from Salmonella enterica subsp. enterica serovar Typhi str. Ty2 and ECs_5259. The family also includes the half-length pseudogene translation YjiT from Escherichia coli str. K-12 substr. MG1655, for which the corresponding complete protein is WP_048814575. The function is unknown.