Required for the assembly and integrity of muscle dense bodies, which establish the adhesion sites of the muscle cells to the extracellular matrix (PubMed:15210732, PubMed:20385102). Decreased localization of unc-95 to dense bodies and their subsequent dissociation plays an important role in ecdysis during molting (PubMed:20385102). Involved in the organization of the muscle sarcomeric structure and thereby required for locomotion (PubMed:15210732). Localized in the cytoplasm in comma stage embryos, and gradually becomes more localized at the membrane in the 1.5- and 2-fold stage embryos. In the threefold embryo, associated with dense bodies at the cell membrane, but also present in the cytoplasm. Nuclear localization from the threefold stage embryo as well. In adult animals, localized in dense bodies, M-lines, muscle-muscle cell boundaries, cytoplasm and nucleus (PubMed:15210732). Decreased localization to dense bodies during the L2/L3 molt (PubMed:20385102). Expressed in the body wall muscles, vulval muscles and the anal muscles (PubMed:15210732, PubMed:20385102). Expressed in the muscle arms of the head muscle cells that form neuromuscular junctions and in the anal depressor muscle (PubMed:15210732). Expressed during embryogenesis, in larvae and in adult animals. Ubiquitinated. Ubiquitination by rnf-5 leads to dissociation from muscle dense bodies during molting and is required for ecdysis. RNAi-mediated knockdown leads to disorganized actin-containing I band filaments, disorganized dense bodies in the muscles and reduced motility.