Probable GTPase that plays a role in the mitochondrial ribosomal small subunit assembly. Specifically binds the 12S mitochondrial rRNA (12S mt-rRNA) to a 33 nucleotide section delineating the 3' terminal stem-loop region. May act as a chaperone that protects the 12S mt-rRNA on the 28S mitoribosomal subunit during ribosomal small subunit assembly.
Belongs to the Era/MnmE GTP-binding protein family. Era subfamily. Contains 1 G (guanine nucleotide-binding) domain. Contains 1 KH type-2 domain.
Mitochondrion matrix. Mitochondrion inner membrane. Localizes on the matrix side on the mitochondrial inner membrane.