In 1840 he was ordained by Charles Richard Sumner, bishop of Winchester, to the curacy of Andover, and in 1841 he became curate of Wherstead and Freston, near Ipswich.
Immediately after leaving Oxford he visited France, and traversed a large part of Switzerland on foot.
In September 1853 he went to Ireland, and convinced himself that the distressed state of the country was largely owing to past misrule.
When in 1885 his stepson, Mr. Francis Seymour Stevenson, became liberal candidate for the Eye division of Suffolk (for which he sat till 1906), Zincke, who took a keen interest in politics, assisted in his victorious campaign.
From that time until his death he continued to take an active part in local politics, and wrote a large number of pamphlets and addresses in support of his opinions, which were those of an advanced radical.