Exhibit 23.1
Consent of Independent Registered Public Accounting Firm
We consent to the reference to our firm under the caption “Experts” and to the use of our report dated May 9, 2013 (except as to the last paragraph in Note 13, as to which the date is July 8, 2013), in Amendment No. 2 to the Registration Statement (Form S-1 No. 333-189305) and related Prospectus of Conatus Pharmaceuticals Inc. for the registration of shares of its common stock.
/s/ Ernst & Young LLP
San Diego, California
July 8, 2013
