Component of the large ribosomal subunit. The ribosome is a large ribonucleoprotein complex responsible for the synthesis of proteins in the cell. Binds to G-rich structures in 28S rRNA and in mRNAs. Plays a regulatory role in the translation apparatus; inhibits cell-free translation of mRNAs. Component of the large ribosomal subunit (By similarity). Homodimer (By similarity). Interacts with DHX33 (PubMed:26100019). Belongs to the universal ribosomal protein uL30 family.