The domain within your query sequence starts at position 157 and ends at position 255; the E-value for the RPT_1 domain shown below is 4.15e-6.

PSGSVQYQVIPQLQTVEGQQIQINPTSSSSLQDLQGQIQLISAGNNQAILTAANRTASGN
ILAQNLANQTVPVQIRPGVSIPLQLQTLPGTQAQVVTTL

This is a significant internal repeat in the query protein sequence, as detected by the Prospero program.