Possible cell adhesion receptor. It possesses an intrinsic protein tyrosine phosphatase activity (PTPase) and dephosphorylates EPHA2 regulating its activity. The first PTPase domain has enzymatic activity, while the second one seems to affect the substrate specificity of the first one. This is the function of Ensembl gene identifier ENSG00000142949 (PTPRF, protein tyrosine phosphatase receptor type F).