Catalysis of the reaction: DNA with 1-N6-ethenoadenine + H2O = DNA with abasic site + 1-N6-ethenoadenine. This reaction is the removal of 1,N6-ethenoadenine by cleaving the N-C1' glycosidic bond between the target damaged DNA base and the deoxyribose sugar.
1,N(6)-ethenoadenine N-glycosylase activity