Probable ligand for integrin in the brain. This is a non catalytic metalloprotease-like protein (PubMed:19692335). Involved in regulation of cell adhesion and spreading and in inhibition of cell proliferation. Neuronal receptor for LGI1. {ECO:0000269|PubMed:12589811, ECO:0000269|PubMed:15882968, ECO:0000269|PubMed:16385342, ECO:0000269|PubMed:19692335}. This is the function of Ensembl gene identifier ENSG00000008277 (ADAM22, ADAM metallopeptidase domain 22).