Roll dough into a 15 x 7" rectangle on a lightly floured surface.
Brush with melted butter.
Combine sugar and cinnamon and sprinkle over dough. Add raisins if desired.
Roll up starting at narrow edge, keeping dough tight. Pinch seam and ends together.
Place seam side down in a greased 8.5 x 4.5 x 3 inch loaf pan.
Cover and let rise 45 minutes to one hour or until doubled in bulk.
Bake at 350 degrees for 25 to 30 minutes, or until loaf sounds hollow when tapped lightly.
Remove from pan to wire rack and let cool.
Combine powdered sugar, milk and vanilla until smooth and drizzle over loaf.
Sprinkle with pecans, if desired.