Located on the platform of the 30S subunit, it bridges several disparate RNA helices of the 16S rRNA. Forms part of the Shine-Dalgarno cleft in the 70S ribosome. Part of the 30S ribosomal subunit (PubMed:30126986). Interacts with proteins S7 and S18. Binds to IF-3 (By similarity). Interacts with VmlR (PubMed:30126986). Interacts with BrxC (PubMed:33722570). Belongs to the universal ribosomal protein uS11 family.