Mediates bacterial resistance to streptomycin, is probably a streptomycin 6-adenylyltransferase. ATP + streptomycin = 6-O-adenylylstreptomycin + diphosphate Loss of streptomycin resistance. In strain C179b a 10242 bp segment of DNA has been inserted into the chromosome between cj0168c and sodB. This piece of DNA forms a multidrug resistance genomic island and is transferable among C.jejuni strains.