Predicted to be a structural constituent of ribosome. Predicted to be involved in mitochondrial translation. Predicted to be part of mitochondrial small ribosomal subunit. Is expressed in several structures, including anterior endoderm; anterior endoderm anlage; embryonic/larval midgut primordium; gut section; and larval muscle cell. Orthologous to human MRPS26 (mitochondrial ribosomal protein S26).