The domain within your query sequence starts at position 27 and ends at position 208; the E-value for the RPT_2 domain shown below is 2.58e-16.

DPVEKVIEGFSRGLSNAEREVGKALEGINNGITQAGREVEKIFGELSNMGSQAGKNVEHG
LDKVAHDINSGIGHAGKEAEKFAHGVNHAAGQVGKETNKIIHHGVSQGGSEAGKFGQGSH
HAFGQGGNVADKLGHETHHAFGQGGNVADKLGHETHHAFGQGGNVADKLGHGGNVADKLG
HG

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