Inhibits CBL-SH3KBP1 complex mediated down-regulation of EGFR signaling by sequestration of SH3KBP1. Binds to SH3KBP1 and prevents its interaction with CBL and inhibits translocation of SH3KBP1 to EGFR containing vesicles upon EGF stimulation. . This is the function of SHKBP1 (SH3KBP1 binding protein 1, Ensembl gene identifier ENSG00000160410).