ubiquitin-like modifier activating enzyme activity
https://github.com/geneontology/go-ontology/issues/14208
GO:0008642
Catalysis of the activation of small proteins, such as ubiquitin or ubiquitin-like proteins, through the formation of an ATP-dependent high-energy thiolester bond.
GO:0008641
small protein activating enzyme activity
molecular_function
ligase activity, forming carbon-sulfur bonds
catalytic activity, acting on a protein