The domain within your query sequence starts at position 183 and ends at position 229; the E-value for the RPT_2 domain shown below is 1.02e-7.

QGALGPKGDKGTIGPAGTKGQKGSKGELCGNGTKGEKGDPGASGAHG

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