The following genes with an identifier have been found but that do not have a mapping to Ensembl: 18
http://classic.wikipathways.org/instance/WP73_r116967 GNG4 with datasource Entrez Gene
http://classic.wikipathways.org/instance/WP73_r116967 CALM1 with datasource Entrez Gene
http://classic.wikipathways.org/instance/WP73_r116967 Pde4a with datasource Entrez Gene
http://classic.wikipathways.org/instance/WP73_r116967 Akap5 with datasource Entrez Gene
http://classic.wikipathways.org/instance/WP73_r116967 Gnai2 with datasource Entrez Gene
http://classic.wikipathways.org/instance/WP73_r116967 Gng10 with datasource Entrez Gene
http://classic.wikipathways.org/instance/WP73_r116967 Adcy6 with datasource Entrez Gene
http://classic.wikipathways.org/instance/WP73_r116967 Kras with datasource Entrez Gene
http://classic.wikipathways.org/instance/WP73_r116967 Pde1b with datasource Entrez Gene
http://classic.wikipathways.org/instance/WP73_r116967 Gna15 with datasource Entrez Gene
http://classic.wikipathways.org/instance/WP73_r116967 Gng7 with datasource Entrez Gene
http://classic.wikipathways.org/instance/WP73_r116967 Prkd1 with datasource Entrez Gene
http://classic.wikipathways.org/instance/WP73_r116967 Gngt2 with datasource Entrez Gene
http://classic.wikipathways.org/instance/WP73_r116967 Gna11 with datasource Entrez Gene
http://classic.wikipathways.org/instance/WP73_r116967 Prkch with datasource Entrez Gene
http://classic.wikipathways.org/instance/WP73_r116967 Akap6 with datasource Entrez Gene
http://classic.wikipathways.org/instance/WP73_r116967 Prkar2a with datasource Entrez Gene
http://classic.wikipathways.org/instance/WP73_r116967 Gnb5 with datasource Entrez Gene
More details at https://www.wikipathways.org/WikiPathwaysCurator/GeneTests/genesWithoutEnsemblMapping