The domain within your query sequence starts at position 158 and ends at position 265; the E-value for the 3cl3 domain shown below is 2e-53.
VTSLLGELQESQSRLEAATKDRQALEGRIRAVSEQVRQLESEREVLQQQHSVQVDQLRMQ NQSVEAALRMERQAASEEKRKLAQLQAAYHQLFQDYDSHIKSSKGMQL