peptidase activity ubiquitin-like protein peptidase activity https://github.com/geneontology/go-ontology/issues/17398 ubiquitinyl-like hydrolase activity GO:0019783 GO:0140491 small conjugating protein-specific protease activity molecular_function GO:0070138 ubiquitin-like-protein-specific protease activity While ubiquitin-like proteins can be rarely linked to substrates via bonds other than isopeptide bonds, all known ubiquitin-like peptidases cleave the isopeptide bond. ubiquitin-like specific protease activity ubiquitin-specific protease activity involved in negative regulation of ERAD pathway small conjugating protein-specific isopeptidase activity ubiquitin-like protein-specific protease activity ubiquitin-specific protease activity involved in positive regulation of ERAD pathway GO:1904454 An isopeptidase activity that cleaves ubiquitin or ubiquitin-like proteins (ULP; e.g. ATG8, ISG15, NEDD8, SUMO) from target proteins. GO:1904455 ubiquitin-like protein-specific isopeptidase activity ubiquitin-like hydrolase activity