Table schema:
CREATE TABLE table_26957063_3 (_percentage_similarity_to_c7orf38 INTEGER, _percentage_identity_to_c7orf38 VARCHAR)

Question: What is the % similarity to C7orf38 of the animal whose % identity to C7orf38 is 81?
SQL: SELECT MAX(_percentage_similarity_to_c7orf38) FROM table_26957063_3 WHERE _percentage_identity_to_c7orf38 = 81