The function of PEAK1 (pseudopodium enriched atypical kinase 1, ENSG00000173517) is as follows. Probable catalytically inactive kinase. Scaffolding protein that regulates the cytoskeleton to control cell spreading and migration by modulating focal adhesion dynamics (PubMed:20534451, PubMed:23105102, PubMed:35687021). Acts as a scaffold for mediating EGFR signaling (PubMed:23846654). {ECO:0000269|PubMed:20534451, ECO:0000269|PubMed:23105102, ECO:0000269|PubMed:23846654, ECO:0000269|PubMed:35687021}.