View-search-last-regexp-backward is an interactive compiled Lisp function in `view.el'.

(View-search-last-regexp-backward N)

Search backward for first (or prefix Nth) instance of last regexp in View mode.
Displays line found at center of window. Sets mark at starting position and
pushes mark ring.

The variable `view-highlight-face' controls the face that is used
for highlighting the match that is found.